Mathlas runs on your own machine — the client starts it, so there is no endpoint to ping. 258 installs a week from pypi. Last commit 18 Sep 2026.
Airtight math for AI agents: 3.68M-doc theorem search + numeric/Lean verification. No LLM, no key.
We read the source, 23 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
OUT_PNG = os.path.join(HERE, os.pardir, "architecture.png")
proc = subprocess.run(
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mathlas -- uvx mathlas-mcp
{
"mcpServers": {
"mathlas": {
"args": [
"mathlas-mcp"
],
"command": "uvx"
}
}
}
[mcp_servers.mathlas]
command = "uvx"
args = ["mathlas-mcp"]
{
"mcpServers": {
"mathlas": {
"args": [
"mathlas-mcp"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"mathlas": {
"args": [
"mathlas-mcp"
],
"command": "uvx"
}
}
}
This one needs environment variables set before it will start:
MATHLAS_SEED (Set to 1 to force the lightweight built-in seed corpus and never load the multi-GB prebuilt index (fast cold start).), MATHLAS_INDEX (Path to a prebuilt index .npz to serve for search_existing_math (optional; the seed corpus is used when absent).).
The author declared them in the registry entry; get the values from the project itself.
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